Finding the Fourth Proportional to 408,637.75, 612,956.63 and 113,149.75
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Solution
The fourth proportional to 408,637.75, 612,956.63 and 113,149.75 is: 169,724.63
Step by Step Solution
- Step 1: Write the proportion equation
408,637.75 : 612,956.63 = 113,149.75 : x - Step 2: Convert to fraction form
408,637.75/612,956.63 = 113,149.75/x - Step 3: Cross multiply
408,637.75x = 612,956.63 × 113,149.75 - Step 4: Simplify right side
408,637.75x = 69,355,889,445.34 - Step 5: Solve for x
x = 69,355,889,445.34/408,637.75 - Step 6: Final answer
x = 169,724.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.